Correlation enhancement of high-order harmonic generation in Xe

Date

2019

Authors

Bray, Alexander
Freeman, David
Eckart, Sebastian
Kheifets, Anatoli

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Publisher

American Physical Society

Abstract

We consider the process of high-order harmonics generation (HHG) in the xenon atom enhanced by the intershell correlation between the valence 5p and inner 4d shells. We derive the HHG spectrum from a numerical solution of the one-electron time-dependent Schrödinger equation multiplied by the enhancement factor taken as the photoionization cross-sections ratio calculated with and without the intershell correlation. Such a simplified approach is adequate to describe the experimental HHG spectrum reported by Shiner et al. [Nat. Phys. 7, 464 (2011)] generated by a single color IR laser. Similarly, we find good agreement when applied to the two-color driven HHG spectra reported by Faccialá et al. [Phys. Rev. Lett. 117, 093902 (2016)].

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Citation

Source

Physical Review A

Type

Journal article

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Access Statement

Open Access

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